Prepare cake batter and bake as directed on package for two 9-inch round layers.,Cool cakes in pans 15 minutes.,Pierce cakes with large fork at 1/2 inch intervals.,Stir boiling water into dry jelly powder 2 minutes until completely dissolved.,Pour over cakes.,Refrigerate 3 hours.,Heat oven to 350F,Crush 5 mints in blender; mix with melted chocolate, sour cream and food coloring.,Place 1/2 the remaining mints, about 4 inches apart, on baking sheet covered with parchment paper.,Bake 5 minutes or until mints melt to form 2 1/2 to 3 inch circles.,Cool before removing from baking sheet.,Repeat with remaining mints.,Dip bottom of 1 cake pan in warm water 10 seconds; unmould onto plate,,Spread with chocolate mixture.,Unmould second cake; place on first layer.,Frost with Cool Whip.,Decorate with melted mints.,Store in refrigerator.,HOW TO BEND CANDY: To create a curvy effect on the melted candy, use a metal spatula to carefully remove melted candy from parchment while still warm and pliable.,______,Cool completely before using to decorate cake.